#include<stdio.h>
#include<math.h>

int a[4],flag,count;
main()
{
    int b1,b2,i,j,k=0,p,c;
    printf("Game Begin\n");
    printf("Now guess your number in mind is ####.\n");
    for(i=1;i<10&&k<4;i++){
        printf("No.%d:your number may be:%d%d%d%d\n",++count,i,i,i,i);
        scanf("%d",&p);
        for(j=0;j<p;j++)
        a[k+j]=i;
        k+=p;
    }
    if(k<4)
    for(j=k;j<4;j++)
    a[j]=0;
    i=0;
    printf("No.%d:your number may be:%d%d%d%d\n",++count,a[0],a[1],a[2],a[3]);
    printf("How many are in exact positions:");
    scanf("%d",&b1);
    if(b1==4){prt();exit(0);}
    for(flag=1,j=0;j<3&&flag;j++)
    for(k=j+1;k<4&&flag;k++)
    if(a[j]!=a[k]){
        c=a[j];a[j]=a[k];a[k]=c;
        printf("No.%d:your number may be:%d%d%d%d\n",++count,a[0],a[1],a[2],a[3]);
        printf(" How many are in exact positions:");
        scanf("%d",&b2);
        if(b2==4){prt();flag=0;}
        else if(b2-b1==2) bhdy(j,k);
        else if(b2-b1==-2){
            c=a[j];a[j]=a[k];a[k]=c;
        }
        else b1=b2;
    }
    if(flag) printf("You input erro!\n");
}
prt()
{
    printf("Now your number must be %d%d%d%d.\n",a[0],a[1],a[2],a[3]);
    printf("Game over\n");
}
bhdy(s,b)
int s,b;
{
    int i,c=0,d[2];
    for(i=0;i<4;i++)
    if(i!=s&&i!=b)
    d[c++]=i;
    i=a[d[1]];a[d[1]]=a[d[0]];a[d[0]]=i;
    prt();
    flag=0;
}